Bobbin-tip support for filling replenishing looms



July 20 1926. 1,593,197

I. SNOW I BOBBIN TIP SUPPORT FOR FILLING REPLENISHING LOOMS Filed March 26, 1926 2 Sheets-Sheet 1 A T okNEY July 20 1926.

l. $NQVV BOBBIN TIP SUPPORT FOR FILLING REPLENISHING LQOMS Filed March 26. .1 2 Sheets-Sheet 2 l/E/V TOR" M A T TOR/V5 Y Patented July 20, 1926.

UNE'IED SIAIEE;

rarest series.

ISAAC SNOV], OF LAWRE-NCE, MASSACHUSETTS. ASSIGIIOR TO DRAPER CORPORATION, OF HOPEDALE, IYIASSACHUSE'ITS, A CORPORATION OF MAINE.

BOBBIN-TIP SUPPORT FOR FILLING w 3 Application filed. March 26, 1926.

This invention relates to filling replenish ng looms and more particularly to bobbin ip supports for controlling the tip end of filling carriers or bobbins during the transfer of the filling carriers or bobbins from the hopper or magazine to the shuttle.

It is now the common practice to provide filling replenishing looms with transferring mechanism associated with means for directing the tip end portion of the bobbin into. the shuttle. In some cases the bobbin tip support is pivotally mounted on a fixed arm extending rearwardly from the transferrer stud, with the end of the tip support normally extending below and in the path of the tip of the bobbin, and when replenishment is effected the bobbin tip support turns upon its pivot to permit the tip end of the bobbin to pass into the shuttle. In other cases it. has been proposed to associate with the transferrer itself a tip holder which will grasp the tip end portion of the bobbin and hold it positively during the movement of the transferrer in effecting replenishment of filling. Each of these mechanisms has served satisfactorily in many cases.

One of the objects of the present invention, therefore, is to provide a bobbin tip support which is simple in construction and wherein the bobbin tip support as well as the arm which supports the bobbin tip support shall. be pivotally mounted for movement by the transferr'er during replenishment of filling.

In accordance with the present invention, the bobbin tip support is pivotally mounted upon the bobbin tip supporting arm which is itself pivotally supported, and the pivotally mounted bobbin tip support is normally out of the path of movement of the tip of the filling carrier and is caused to move into the path of n'iovenient below the tip of the filling carrier by the downward action of.

the transferrer.

The invention and new combination of parts will best be made clear from the following description and the accompanying drawings of one good form thereof.

In the drawings r Fig. 1 is a sectional side elevation of portions of afilling replenishing loom, having the present invention associated therewith, and showin the parts in their normal posi- 2P 11 e elee? pe a R-EPLENISHING- LOOMIS.

Serial No. 97,575.

Fig.2 is a view similar to that of Fig. 1 but showing the relation assumed by the parts when the transferrer moves clownwardly to transfer a filling carrierto the shuttle;

Fig. 3 is a view sin'iila-r to that of Fig. 2 showing the relation of the parts when the filling carrier has been finally moved into the shuttle by the transfer-rel";

Fig. i is an enlarged perspective view showing the transferring mechanism with the present invention associated therewith; and

Fig. 5 is an enlarged detail partly in section of the bobbin tip support.

lvfounted upon the loom frame 1 at the filling replenishing side of the loom is the magazine or hopper 2 in which are mounted the filling carriers or bobbins 3. In the present instance, the filling carrier or bobbin, which is in transferring position as in dioated at the left lower series of filling carriers in' F 1, normally rests against a guide or abutment l, and is normally above the throat or passageway 5 leading to the shuttle beneath.

. The lay 6 has the usual shuttle box at the replenishing side, and the shuttle 7 is provided with the bottom opening 8 for the ejection of the spent filling carrier on replenishment of filling. These parts may all be of usual construction.

Pivotally mounted upon the stud or dead shaft- 9 supported bythe loom frame, is the transferrer 10, having a head portion 11 for engagement with the filling carrier or bobbin during transfer. The downwardly extending arm 12 which is connected to the transferrer has pivotally connected thereto at 13 a dog 14 which is adapted to be engaged by a hunter 15 on the lay to effect replenishment of filling. A. spring 16 nor mally acts upon the transferrer 10 to maintain it in its upward inactive position, and upon call for replenishment by any suitable form of indicating means, the dog 14 is moved into the path of the hunter 15 and the transferrer is thereby given its transfer n'iovement. The parts so far described are of usual construction and as usual, also, the hopper 2 is provided with means for effecting its rotative movement to bring a fresh filling carrier into position for transfer. In the present instance," the rotating means consists of the rack teeth 17 secured to the hopper which may he engaged and actuated stepdvvbtep as usual by the actuating pawl l8. i ince this me-chanisi'n, however, forms no es. ntial part of the present invention, it is not necessary to further describe it.

The transferrer has extending laterally therefrom the tip pusher arm or rod 19, the outer extremity of which may be downturned, as indicated in i, and provided with a notched portion 2 to engage the tip end of the bobbin to be transferred.

Secured upon the dead shaft or stud 9 is a sleeve 21 which may be clamped in posi tion bya set screw 22, and such sleeve has a bracket 2-3 extending rearwardly therefrom to which is pivoted by a bolt 2d the bobbin tip supporting; arm 25. The bobbin tip supporting arm 25 in accordance with the present invention is normally under the influence of yielding means to maintain it in its upper or normal position, and in the present instance-of the invention a 26 is mounted upon the pivotal support 2%, and one end of the spring is connected at 27 to the bobbin tip supporting arm and the other end 28 is engaged beneath a fixed pin 29 extending from the sleeve 21, the construction being: such that the spring 26 acts to maintain the bobbin tip supporting arm 25 in its upper or raised position, as indicated in 4, with permissive movement, nevertheless, about its pivotal support 24: in a downward direction during the action of the transferrer, as will more fully appear. To limit the upward swing-in movement of the arm 25 under the action of the spring 2'6; stop 30 may be employ-ed, as indicated in Fig. i.

The rear end portion of the bobbin tip supporting arm- 25 has pivotally connected thereto at 3]; the bobbin tip support Preferably the rear end portion of the pivotal arm 25 is bifurcated, sis-indicated at and between the walls of the bifurcation the bobbin ti-p support 32 is pivoted.

In accordance witlr the present invention, the bobbin tip support 32 (as fully shown in- Fig. has the downwardly extending; tip supporting arm 3% formed with a rearward-1y turned curved portion which is nor mally out of the path of movement of the bobbin tip when the bobbin is in transferring posit-ion. Such normal posit-ion of he bobbin tip support as indicated in Figs. 1 and 4, may be variously contrived but in the present instanceof the i vention.

the'bobbin'tip? support 32 is overweighted at its lower end with the result that the curvedv bobbin-engagingportion 34c will normally-hang to one side of the path of movement of the bobbin tip next to the transtterrer.

hefull lineposition in. Fig. 5 well illustrates this; inoperative; position of the bob= bin? tip support while the dotted line position in Fig. 5 shows the bobbin tip sup-- port in the position it occupies when it is in operative position below the feeler tip, as will more fully appear.

The pivotal bobbin support has the upwardly extending tail portion which may be curved, as indicated in Figs. d and 5, and is so disposed with respect to the tip pusher arm 19 that during normal weaving operation the arm 19 is not engaged with the tail portion 35 of the bobbin tip support. l hen, however, the transferrer mores downwardly in effecting transfer of a filling carrier to the shuttle, the tip pusher a 19 engages the inclined or curved surface of the tail- 85, and when the tip of the filling carrier has been engaged by the bifurcz-itefl end portion 36 of the tip pusher, the latter will engage the tail portion 35 and perforce swing the bobbin tip support 32 from its full to its dotted line position, Fig. 5, wherein the portion 34: of the bobbin tip support takes position under the bobbin tip and holds the latter in the bifurcation or crotch 36 of the tip pusher. tip of the bobbin during transfer is therefore received in the crotch or bifurcation of the tip pusher arm, and after such cngagement the tip pusher arm 19 contacts withthe upwardly extending tail 35 of the tip pusher and swings it from its normal inoperative position to-its operative position under the tip of the bobbin to be trans ferred. This relation of parts is indicated in Fig. 2 and it will be noted that the tip of the bobbin is held in the notch or biturcation of the tip pusher, and below the tip of the. bobbin is the portion 34 of the. bobbin tip support. In the position indicated in Fig. '2 where the bobbin has not yet been moved from the hopperunder the downwari'l action ofthc transferrer; it will be noted that the bobbin tip supporting; arm 25 has. not yet been turnedv about its pivotal support 52 1 but that the bobbin tip support has been moved by the tip pusher arm..19 to carry the end portion 34 of the bobbin tip support into operative position below the bobbin ti'p. Upon further downward movement ofthc transferrer, as indicated in Fig. the tip pusher ariz acting through the tail portion of the bobbin tip support 32 will cause the bobbin tip sup portingarm 25 to turn downwardlyabout its pivotal support 24 and permit the bobbin tip support to enter the shuttle in a posh tion best calculated to properly position the tip portion of the bobbin in the bobbin chamber ofthe shuttle. As the transferrer moves upwardly after having effected the transfer, the bobbin. tip supporting arm 25 will rise, and since thepressure of the tip pushe arm has been, removed from the tail 35 by upwardmovement of the somehow, the bobbin tip support 32 will move. some The 0 operative position below the bobbin tip to its normal or inoperative position which it will fullyreach when the transferrer and the bobbin tip supporting arm have completed their upward movements.

inasmuch as the bobbin tip support is to be swung from its inoperative to its operative position beneath the bobbin tip by the tip pusher arm 19 during the action of the transiierrer, and since such action by the tippusher arm is to effect downward movement of the bobbin tip supporting arm 25, it is desirable in most instances to provide a bobbin tip support 32 with stops to limit its swinging movements. These stops in the present instance of the invention are formed by slabbed-o'ff portions 37 and 38 of the bobbin tip support. Normally the bobbin tip support 32, as indicated in Fig. 5, will hang in its inoperative or full line position under the action of gravity, since the lower arm of the bobbin tip support isheavier than the upper one or is overweighted, and during such normal position the slabbedoii portion 38 will rest upon the front wall of the bifurcation 33 of the supporting arm 25. hen, however, during transfer, the tip pusher arm 19 engages the tail 35, the bobbin tip support will be turned upon its pivotal mounting 31 from its full to its dotted line position, Fig. 5, thereby carrying the end 3st into position below the bobbin tip, and at such time the slabbed-off portion 37 will engage the front wall of the bifurcation 33, as indicated by dotted lines in Fig. 5, and thereby limit the swinging movement of the bobbin tip support from its inoperative to its operative position. \Vhen the stop 37 rests against the front wall of the bifurcation, the downward push of the tip pusher arm 19 has no effect in further turning the bobbin tip support but the downward push acts through the tail to effect downward movement of the supporting arm 25 without placing the strain directly on the bobbin tip.

What is claimed is:

1. In a filling replenishing loom, the combination of the transferrer having a bobbin tip pusher, a pivotally mounted bobbin tip supporting arm, a spring normally acting to raise the arm to normal position, a bobbin tip support pivotally mounted on the supporting arm and having an upwardly extending tail adapted to be engaged by the tip pusher on replenishment of filling to swing the tip support under the bobbin and by continued movement of the transferrer to turn the bobbin tip supporting arm upon its pivot.

2. In a filling replenishing loom, the combination of the transferrer having a bobbin tip pusher, a pivotally mounted bobbin tip supporting arm, a spring normally acting t rai e he arm to normal position, a bobbin tip support pivotally mounted on the supporting arm and having an upwardly extending tail adapted to be engaged by the tip pusher on replenishment of filling to swing the tip support under the bobbin and bvcentinued movement of the transferrer to turn the bobbin tip supporting arm upon its pivot, and stops for limiting the swinging movement of the bobbin tip support under the stress of the tip pusher.

3. In a filling ri-iplenishing loom, the conr bination of the transferrer, a tip pusher arm extending therefrom and having a tip pusher, a bobbin tip supporting arm pivotally mounted to swing downwardly during transfer, a bobbin tip support pivotally mounted on said arm and normally occupymg Van inoperative position relative to the iobbin tip, a tail extending upwardly from the bobbin tip support and normally in position to be engaged by the tip pusher arm during transfer to first cause the bobbin tip support to be extended beneath the bobbin tip and then to turn the bobbin tip supporting arm about its pivotal support.

4. In a filling replenishing loom, the com bination of the transferrer, a tip pusher arm extending therefrom and having a tip pusher, a bobbin tip supporting arm pivotally mounted to swing downwardly during transfer, a bobbin tip support pivotally mounted on said arm and normally occupying an inoperative position relative to the bobbin tip, a tail. extending upwardly from the bobbin tip support and normally in position to be engaged by the tip pusher arm during transfer to first cause the bobbin tip support to be extended beneath the bobbin tip and then to turn the bobbin tip sup porting arm about its pivotal support, and a spring for returning the bobbin tip supporting arm to initial position.

5. In a filling replenishing loom, the COJ11- bination of the transferrer having a bobbin tip pusher, a pivotally mounted bobbin tip supporting arm adapted to swing downwardly during transfer and having a bobbin tip support loosely pivoted thereon to normally occupy an inoperative position out of the path of the bobbin tip and provided with an upwardly extending tail adapted to be struck by the bobbin tip push-er during transfer to first move the lower end of the bobbin tip support to a position beneath the bobbin tip and then efi'ect downward piv otal movement of the bobbin tip supporting arm.

in a filling replenishing loom, the combination of the transferrer, a support secured to the loom frame, a bracket secured to said support opposite the bobbin tip, a bobbin tip supporting arm pivotally mounted upon the bracket to swing downwardly on trans fer, a bobbin tip support pivotally mounted upon the bobbin tip supporting arm, a

iii

spring. normally acting to hold the bobbin rip supporting arm yieldingly in its normal raised position, and means actingduring transfer'to move the bobbin tip support into position beneath and into e11 'ement with the bobbin tip and then by further movement of the transferrer to move the bobbin tip supporting arm downwardly.

T. Ina filling replenishingloom, the com-- bination of the transferrer, a support secured to the loom frame, a bracket secured to said support, a bobbin tip supporting arm pivot-ally mounted upon the bracket, a bobbin tip support pivotally mounted upon the bobbin tip supporting arm, a spring normally acting to hold the bobbin tip supporting arm yielding-1y in its normal position, means acting during" transfer to more the bobbintip support into position below the bobbin tip and then to movethe bobbin tip supporting arm downwardly, and a stop to limit the upward movement at the bobbin tip supporting arm.

8. In a filling replenishingloom, the 00111- bination of thetrans'terrer, asupport secured to the loom frame, bracket secured to said support, a bobbinv tip supporting arm pivotally mounted upon the bracket, a

bobbin tip support pivotally mounted upon the bobbin tip'supporting arm and weighted to normally maintain the bobbin tip support out of the path of the bobbin tip, spring normally acting to hold the bobltiin tip supportingari yieldingly in its normal. position, and means acting during transfer to move the bobbin tip support into positi on below the bobbin tip and then to more the bobbin tip supporting arm downwardly.

9. In a filling replenishing loom, the combination of the transterrer, a support secured to the loom frame, a bracket secured to said support, a bobbin tip supporting; arm pivotally mounted upon the bracket, a bobbin tip support-pivotally mounted upon, the bobbin tip supporting arm, a spring normally acting to hold the bobbin tip supporting arm yieldingly in its normal position, means acting during transfer to more the bobbin tip support into position below the bobbin tip and then to move the bobbin tip supportingarm downwardly, and stops to limit the swinging movements of the bobbin tip support on the arm.

lntestimony whereof, I have signed my name to this specification.-

ISAAC SNOWQ 

